Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.2 on date 23-06-2021 and time 02:51:52 (Italy) in region 4 km SE Pietralunga (PG)

A magnitude Md 1.2 earthquake occured in region: 4 km SE Pietralunga (PG), on

  • 23-06-2021 00:51:52 (UTC)
  • 23-06-2021 02:51:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4140, 12.4700 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pietralunga PG 4 2111 2111
Gubbio PG 11 32216 34327
Montone PG 13 1680 36007
Cantiano PU 14 2245 38252
Scheggia e Pascelupo PG 16 1393 39645
Umbertide PG 17 16681 56326
Apecchio PU 17 1882 58208
Città di Castello PG 19 39913 98121
Piobbico PU 20 2029 100150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
54 Km NW of Foligno (57155 inhabitants)
65 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
72 Km S of Rimini (147750 inhabitants)
82 Km S of Cesena (96758 inhabitants)
88 Km W of Ancona (100861 inhabitants)
93 Km E of Siena (53903 inhabitants)
96 Km N of Terni (111501 inhabitants)
96 Km SE of Forlì (117913 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		Md 1.2 2021-06-23
00:51:52		 43.4143 12.4697 8 2021-06-23
01:06:55		 Sala Sismica INGV-Roma 91738871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-23 00:51:52 ± 0.14
Latitude 43.4143 ± 0.0027
Longitude 12.4697 ± 0.0050
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 91738871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 409
Semi-minor axis of confidence ellipse (meter) 274
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 124
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21224
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

Md:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude Md
Reference to an origin 91738871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-23 01:06:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SACS.HHZ. 2021-06-23T00:52:03.94 3.0 positive manual P -0.71 0
IV.SSFR.HNZ. 2021-06-23T00:52:02.35 3.0 negative manual P 1.08 0
IV.NARO.HHZ. 2021-06-23T00:52:00.62 0.3 undecidable manual S 22 23.5542 108 -0.4 67
IV.PIEI.HHZ. 2021-06-23T00:51:58.24 0.3 undecidable manual S 21 14.4744 117 0.15 72
IV.ATLO.EHE. 2021-06-23T00:51:57.59 0.3 undecidable manual S 205 12.0768 122 0.21 71
IV.NARO.HHZ. 2021-06-23T00:51:57.06 1.0 undecidable manual P 22 23.5542 108 -0.34 23
IV.ATPC.HNZ. 2021-06-23T00:51:56.29 0.3 undecidable manual S 352 7.3815 135 0.18 72
IV.TB02.DHZ.01 2021-06-23T00:51:56.00 0.3 undecidable manual S 225 6.8931 137 0.03 74
IV.CPGN.EHZ. 2021-06-23T00:51:56.75 3.0 undecidable manual P 0.12 0
IV.ATFO.HHN. 2021-06-23T00:51:56.31 0.6 undecidable manual S 123 9.7791 127 -0.41 46
IV.ATBU.EHZ. 2021-06-23T00:51:56.87 0.3 undecidable manual S 43 9.2796 129 0.28 70
IV.PIEI.HHZ. 2021-06-23T00:51:55.83 0.1 undecidable manual P 21 14.4744 117 0.12 96
IV.ATVO.HHE. 2021-06-23T00:51:55.78 0.3 undecidable manual S 235 6.1938 140 -0.04 74
IV.ATLO.EHE. 2021-06-23T00:51:55.44 0.3 undecidable manual P 205 12.0768 122 0.14 72
IV.TB01.DHN.01 2021-06-23T00:51:55.39 0.3 undecidable manual S 217 4.5954 149 -0.09 74
IV.ATPI.EHZ. 2021-06-23T00:51:55.86 0.3 undecidable manual S 307 6.7932 138 -0.09 74
IV.TB03.DHZ.01 2021-06-23T00:51:55.49 0.3 undecidable manual S 253 4.995 146 -0.08 74
IV.ATFO.HHN. 2021-06-23T00:51:54.93 0.3 undecidable manual P 123 9.7791 127 0.02 74
IV.TB01.DHN.01 2021-06-23T00:51:54.21 0.1 undecidable manual P 217 4.5954 149 0.01 100
IV.ATPI.EHZ. 2021-06-23T00:51:54.56 1.0 positive manual P 307 6.7932 138 0.09 24
IV.ATBU.EHZ. 2021-06-23T00:51:54.99 0.1 undecidable manual P 43 9.2796 129 0.15 96
IV.TB03.DHZ.01 2021-06-23T00:51:54.26 0.1 undecidable manual P 253 4.995 146 0.01 100
IV.ATPC.HNZ. 2021-06-23T00:51:54.14 0.6 undecidable manual P 352 7.3815 135 -0.42 46
IV.ATVO.HHE. 2021-06-23T00:51:54.42 0.1 undecidable manual P 235 6.1938 140 0.02 99
IV.TB02.DHZ.01 2021-06-23T00:51:54.38 0.1 undecidable manual P 225 6.8931 137 -0.1 98
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download